mirror of
https://github.com/manuelbl/ttn-esp32.git
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87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
/*******************************************************************************
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*
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* ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
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*
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* Copyright (c) 2018 Manuel Bleichenbacher
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*
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* Licensed under MIT License
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* https://opensource.org/licenses/MIT
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*
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* Hardware abstraction layer to run LMIC on a ESP32 using ESP-iDF.
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*******************************************************************************/
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#ifndef _hal_esp32_h_
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#define _hal_esp32_h_
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#include <stdint.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/queue.h>
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#include "driver/spi_master.h"
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enum HAL_Event {
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DIO0 = 0,
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DIO1,
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DIO2,
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TIMER,
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WAKEUP
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};
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enum WaitKind {
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CHECK_IO,
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WAIT_FOR_ANY_EVENT,
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WAIT_FOR_TIMER
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};
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class HAL_ESP32
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{
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public:
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HAL_ESP32();
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void configurePins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1);
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void init();
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void startBackgroundTask();
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void wakeUp();
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void initCriticalSection();
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void enterCriticalSection();
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void leaveCriticalSection();
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void spiWrite(uint8_t cmd, const uint8_t *buf, size_t len);
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void spiRead(uint8_t cmd, uint8_t *buf, size_t len);
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uint8_t checkTimer(uint32_t time);
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void sleep();
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void waitUntil(uint32_t time);
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spi_host_device_t spiHost;
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gpio_num_t pinNSS;
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gpio_num_t pinRxTx;
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gpio_num_t pinRst;
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gpio_num_t pinDIO0;
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gpio_num_t pinDIO1;
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int8_t rssiCal;
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private:
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static void backgroundTask(void* pvParameter);
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static void dioIrqHandler(void* arg);
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void ioInit();
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void spiInit();
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void timerInit();
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void prepareNextAlarm(uint32_t time);
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void armTimer();
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void disarmTimer();
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static void IRAM_ATTR timerIrqHandler(void *arg);
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bool wait(WaitKind waitKind);
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QueueHandle_t dioQueue;
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spi_device_handle_t spiHandle;
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spi_transaction_t spiTransaction;
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uint64_t nextTimerEvent;
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SemaphoreHandle_t mutex;
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};
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extern HAL_ESP32 ttn_hal;
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#endif // _hal_esp32_h_
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